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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#ifndef jit_CacheIRStubKey_h
#define jit_CacheIRStubKey_h
#include "mozilla/HashFunctions.h"
#include <stdint.h>
#include <utility>
#include "js/HashTable.h"
#include "js/UniquePtr.h"
#include "js/Utility.h"
namespace js {
namespace jit {
enum class CacheKind : uint8_t;
class CacheIRStubInfo;
enum class ICStubEngine : uint8_t {
// Baseline IC, see BaselineIC.h.
Baseline = 0,
// Ion IC, see IonIC.h.
IonIC
};
struct CacheIRStubKey : public DefaultHasher<CacheIRStubKey> {
struct Lookup {
const uint8_t* code;
uint32_t length;
HashNumber hash;
CacheKind kind;
ICStubEngine engine;
Lookup(CacheKind kind, ICStubEngine engine, const uint8_t* code,
uint32_t length)
: code(code),
length(length),
hash(mozilla::AddToHash(mozilla::HashBytes(code, length),
uint32_t(kind), uint32_t(engine))),
kind(kind),
engine(engine) {}
};
static HashNumber hash(const Lookup& l) { return l.hash; }
static bool match(const CacheIRStubKey& entry, const Lookup& l);
UniquePtr<CacheIRStubInfo, JS::FreePolicy> stubInfo;
explicit CacheIRStubKey(CacheIRStubInfo* info) : stubInfo(info) {}
CacheIRStubKey(CacheIRStubKey&& other)
: stubInfo(std::move(other.stubInfo)) {}
void operator=(CacheIRStubKey&& other) {
stubInfo = std::move(other.stubInfo);
}
};
} // namespace jit
} // namespace js
#endif /* jit_CacheIRStubKey_h */